Krusty-Brand Mayonnaise was a brand of mayonnaise endorsed by Krusty the Clown. It had been branded as "perfectly safe" by Krusty, and claimed that a case of tainted mayonnaise was an isolated incident sometime in the past, although despite this, it ended up being tainted to such an extent that Krusty was later forced to recall all mayonnaise, which proved to be a very sore issue for Krusty.